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Willem van der Werf

Work +31 70 31 31 058
Van der Feltz Advocaten


Willem Van der Werf has significant expertise in the areas of construction, real estate, and government. Political and administrative authorities’ interests frequently play a large role in his practice. In particular, when it concerns development and transformation of a geographical area where public as well as private parties are involved. Willem’s experience enables him to look beyond just the legal aspects of a matter and to assess related political and administrative law risks. By maintaining good and effective relations with the competent authorities, and by being cognisant of the context of administrative authorities, he achieves effective solutions for his clients.

Willem specialises in urban and spatial planning, real estate, municipalities’ right of first refusal, long-term ground lease and lease. In addition, he advises and guides municipalities on expropriation proceedings from beginning to completion. Willem is also experienced in addressing questions of law in the area of public administration, such as accessibility and integrity. 


Partner since 2006 (founding of the firm). Prior to that (2001-2006): Attorney at De Brauw Blackstone Westbroek, Real Estate, Public Law, Corporate Mergers & Acquisitions.
Willem lectures at a number of educational institutions and is a member of the editorial board of the Dutch Journal of Agricultural Law (Tijdschrift voor Agrarisch Recht).


Dutch, English, German


  • Member of the editorial board of the Dutch Journal of Agricultural Law (Tijdschrift voor Agrarisch Recht)
  • Member of the Dutch Association for Construction Law Lawyers (Vereniging voor Bouwrechtadvocaten)
  • Member of the Dutch Association of Expropriation Law Lawyers (Vereniging van Onteigeningsrecht Advocaten​​​​​​​)


2000 – 2001 Heidelberg University, European Law
1995 – 2001 Leiden University, Civil and international law


Environment and planning

Within: Environment and planning

Van der Feltz Advocaten is recommended not only for its 'up-to-date knowledge' but also for its 'honest advice and friendly manner'. It offers an impressive range of expertise across permitting, environmental, zoning and health and safety issues in respect of constructions. Clients range from government departments and NGOs to international companies and a number of major firms consult the team. Willem Bosma heads the group with Willem van der Werf and 'outstanding lawyer' Jacques Sluysmans 'whose knowledge and skills put him at the top in his field'. The team advised the Municipality of Voorschoten regarding a redevelopment into a nature area and country and housing estate in a green buffer zone between highly urbanized areas, a matter that included litigation regarding zoning plans and the expropriations needed for the redevelopment.

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Real estate

Within: Real estate

Hague-based specialist firm Van der Feltz Advocaten handles real estate, construction and all connected areas such as zoning and environmental issues and related disputes. The team advised Vorm Ontwikkeling regarding the development of 140 new houses in the Municipality of Kaag en Braassem and also assisted the Municipality of Voorschoten regarding the redevelopment of 330,000 square metres of glasshouses into a nature area with housing estates. the matter also involved disputes regarding the zoning plans. Marc Houweling, Willem Bosma and Willem van der Werf are noted team members.

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